Key#203: Royal Flush – On top of Albert’s Apparel sign. Use the red booth to climb up there.
Reward: $50,000

Key#666: Royal Flush – Inside the Sturdy Package behind the counter with the cash register on it.
Reward: $50,000

Key#185: Outside of the Entrance to the Uranus Zone in Fortune Park.
Reward: Zombrex & $10,000

Key#304: Platform outside Fortune Hotel, it is to the right when facing the Hotel. It will be on the ledge towards the Arena.
Reward: Gambling 3 Magazine

Key#015: In the Underground – on the detached train portion after Sign of Life.
Reward: $50,000

Key#329: In the Underground, by the big yellow cage ball.
Reward: $100,000

Key#690: Silver Strip inside Hot Excitorama – it will be on the wall behind the counter.
Reward: Massager & $50,000

Key#764: In the Uranus Zone – This one is kind of difficult to find. I will try to explain it the best I can.
Go to the under construction coaster, hop the fence upstairs, turn right, jump on to the robot’s arm, walk out on the thumb and jump onto the middle building. Immediately turn right and hop onto the air conditioning unit and go thru the window. Find the hole in the roof and drop down. It should be on the table.
Reward: Six Shooter

The location you can use these keys is in the Uranus Zone at The Bank. (thanks to JohnnyBravo for pointing that out to me )

Again I am not 100% sure on #009 & #044. If I have made any mistakes or pointed you in the wrong direction, just reply to this post and I will try and explain better.

Key#203: Royal Flush – On top of Albert’s Apparel sign. Use the red booth to climb up there.
Reward: $50,000

Key#666: Royal Flush – Inside the Sturdy Package behind the counter with the cash register on it.
Reward: $50,000

Key#185: Outside of the Entrance to the Uranus Zone in Fortune Park.
Reward: Zombrex & $10,000

Key#304: Platform outside Fortune Hotel, it is to the right when facing the Hotel. It will be on the ledge towards the Arena.
Reward: Gambling 3 Magazine

Key#015: In the Underground – on the detached train portion after Sign of Life.
Reward: $50,000

Key#329: In the Underground, by the big yellow cage ball.
Reward: $100,000

Key#690: Silver Strip inside Hot Excitorama – it will be on the wall behind the counter.
Reward: Massager & $50,000

Key#764: In the Uranus Zone – This one is kind of difficult to find. I will try to explain it the best I can.
Go to the under construction coaster, hop the fence upstairs, turn right, jump on to the robot’s arm, walk out on the thumb and jump onto the middle building. Immediately turn right and hop onto the air conditioning unit and go thru the window. Find the hole in the roof and drop down. It should be on the table.
Reward: Six Shooter

The location you can use these keys is in the Uranus Zone at The Bank. (thanks to JohnnyBravo for pointing that out to me )

Again I am not 100% sure on #009 & #044. If I have made any mistakes or pointed you in the wrong direction, just reply to this post and I will try and explain better.